Home / 217,242,470.90-325,863,706.35-80,910,139.70

Finding the Fourth Proportional to 217,242,470.90, 325,863,706.35 and 80,910,139.70

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Solution

The fourth proportional to 217,242,470.90, 325,863,706.35 and 80,910,139.70 is: 121,365,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,242,470.90 : 325,863,706.35 = 80,910,139.70 : x
  2. Step 2: Convert to fraction form
    217,242,470.90/325,863,706.35 = 80,910,139.70/x
  3. Step 3: Cross multiply
    217,242,470.90x = 325,863,706.35 × 80,910,139.70
  4. Step 4: Simplify right side
    217,242,470.90x = 26,365,678,003,938,280
  5. Step 5: Solve for x
    x = 26,365,678,003,938,280/217,242,470.90
  6. Step 6: Final answer
    x = 121,365,209.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.